GPS Communication Software GPS Mapping Program Tarpits and Tips Tarpits and Tips Tools of the Trade Tools of the Trade - Part IV Tarpits and Tips TIPS Outline Datums Error, Accuracy, and Precision Map Scale and Errors Tips for Managing GPS Error Better Maps for GPS GPS Datum Tarpit
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Tarpits and Tips
Aviation GPS is always WGS84
Kenneth E. Foote and Donald J. Huebner, The Geographer's Craft Project, Department of Geography, The University of Colorado at Boulder.
1.) Accuracy: how close to truth or accepted values.
2) Precision: how repeatable or consistent
3.) Error: includes both the imprecision of data and its inaccuracies
Accurate + Precise
= Low Error !
Mapsource data is 1:100,000 scale
*Christoph Feldkotter Version 2.270 Available from www.esri.com/arcscripts